Video: Dab tsi yog transversal angles ntxiv rau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog tias kev hloov pauv txiav hla cov kab sib txuas (cov ntaub ntawv li niaj zaus) ces sab hauv lub kaum sab xis yog supplementary ( ntxiv rau 180 °). Yog li hauv daim duab saum toj no, thaum koj txav cov ntsiab lus A lossis B, ob sab hauv lub kaum sab xis qhia ib txwm ntxiv rau 180 °.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog qhov transversal ntxiv mus?
Tib-sab sab hauv cov ces kaum yog tsim thaum a kev hloov pauv kab hla ob lossis ntau kab. Thaum cov kab uas tus kev hloov pauv kev sib tshuam yog parallel, koj tau txais tib-sab sab hauv cov ces kaum uas yog ntxiv, los yog ntxiv rau 180 degrees.
Tsis tas li ntawd, puas co sab hauv cov ces kaum ntxiv mus txog 180? Yog hais tias cov kab AB thiab CD yog parallel, ces nws yog pom tseeb tias cov co - sab hauv cov ces kaum tsis sib npaug tab sis nws hloov tawm hais tias lawv yog supplementary, uas yog, lawv sum yog 180 °. Los xaus: Co - sab hauv cov ces kaum tsim los ntawm parallel kab yog supplementary.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog cov ces kaum tsim los ntawm kev hloov pauv?
Yog hais tias ob kab sib npaug yog txiav los ntawm a kev hloov pauv , ces lwm sab hauv cov ces kaum tsim yog congruent. Thaum ob kab txiav los ntawm a kev hloov pauv , cov khub lub kaum sab xis ntawm ob sab ntawm lub kev hloov pauv thiab sab nraud ob kab yog hu ua alternate sab nrauv lub kaum sab xis.
Dab tsi yog hu ua transversal?
Hloov pauv . Txhais: Ib kab uas hla ob lossis ntau dua (feem ntau yog sib npaug) kab. Hauv daim duab hauv qab no, kab AB yog a kev hloov pauv . Nws txiav hla cov kab sib txuas PQ thiab RS. Yog hais tias nws hla cov kab sib luag ntawm txoj cai kaum nws yog hu ua ib perpendicular kev hloov pauv.
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